When it comes to sending the questions to the interviewee before the interview, you can. But I don’t do it much. I guess it’s not a bad idea. Sometimes I have. If you are interviewing a true professional who is a true expert in what he does, you will not need to see the questions. You are confident enough, you’ve done enough, and you’ve internalized your experience. You won’t have to.
And this is one of the reasons you want to seek out high-quality people to interview. You want to go after people who are already doing interviews. Then you have a chance to listen to one of their interviews and see how they sound. You can also copy the questions you hear in the interview. This will give you a great understanding of your interview guest.
If someone wants me to send you the questions, most of the time you may look at them, but you may not study them. Someone who is not confident can study them and really wants to make sure there are no curious questions there. I don’t do it much. I do not think that it’s necessary. If they ask you, you have nothing to lose by doing it. Doing this will force you to prepare even more for your interview. Preparation is what makes a good interview. The more you prepare, the better your questions will be. And the better your questions, the better your interview will be. And the better your interview, the more value you will give to your listeners.